Patent US323568A successfully refreshed from Google Patents.
US323568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stove-pipe damper
Assignee: —
•
Filing: —
•
Granted: 1885-08-04
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Expires: 1902-08-04
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:47
CPC Classifications
G; G05; G05D; G05D23/00; G05D23/01; G05D23/02; G05D23/08; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86734; Y10T137/86743; Y10T137/87265; Y10T137/87322; Y10T137/87378
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1888-08-03 | 1889-02-02 | 1889-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1892-08-03 | 1893-02-02 | 1893-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1896-08-03 | 1897-02-02 | 1897-08-04 | $7700.00 | Window Closed / Lapsed |